NixOS-Config/modules/system/services/general/displaymanager/default.nix

{ config, pkgs, ... }:
{
  services.greetd = {
    enable = config.system.desktop.enable;
    restart = true;
    settings = {
      terminal = {
        vt = 2;
        switch = true;
      };
      default_session.command = ''
        ${pkgs.greetd.tuigreet}/bin/tuigreet --remember --remember-user-session --user-menu --asterisks --sessions /etc/greetd/environments
      '';
    };
  };

  environment.etc = {
    "greetd/environments/sway.desktop".text = ''
      [Desktop Entry]
      Name=Sway
      Exec=sway --unsupported-gpu
    '';
    "greetd/environments/niri.desktop".text = ''
      [Desktop Entry]
      Name=Niri
      Exec=niri-session
    '';
    "greetd/environments/hyprland.desktop".text = ''
      [Desktop Entry]
      Name=Hyprland
      Exec=Hyprland
    '';
  };
}